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Boilers & Hot Water Tanks

572 topics in this forum

  1. Heat loss over time (Vented Cylinder) 1 2

    By marshian,
    • 28 replies
    • 2.5k views

  2. Cotherm GTLH 3161 cylinder Stat

    By John Carroll,
    • 0 replies
    • 427 views

  3. Max flow velocity in 15mm pipe?

    By sharpener,
    • 13 replies
    • 3k views

  4. Oil boiler only runs for 15 mins at a time

    By sharpener,
    • 8 replies
    • 1.1k views

  5. Pressure creeping up on Vaillant ecotec plus boiler

    By dscoll,   
    • 3 replies
    • 680 views

  6. Energy Efficient Water Heater 1 2

    By jack benson,
    • 35 replies
    • 2.7k views

  7. how important is perfect placement of weather compensation sensor for a Viessman gas boiler?

    By Adsibob,
    • 4 replies
    • 584 views

  8. Load compensation vs Weather compensation (Viessman Vitodens related but general question)

    By mrklawuk,
    • 5 replies
    • 3.4k views

  9. Do universal roof boiler flue kits exist - suitable for fitting to any brand of boiler?

    By Wuey,
    • 3 replies
    • 762 views

  10. PT100 cylinder probe wireless connection

    By JohnMo,
    • 9 replies
    • 1.2k views

  11. Rough cost oil boiler replacement

    By jfb,
    • 1 reply
    • 568 views

  12. What model is this oil pump - have a guess

    By cwr,
    • 9 replies
    • 1.1k views

  13. Combi and unvented cylinder

    By nikbower,
    • 15 replies
    • 2.2k views

  14. intermittent F75 on vaillant ecotec 831

    By dscoll,   
    • 13 replies
    • 1.7k views

  15. Reducing effective volume of inaccessible DHW pipework

    By JamesPa,
    • 1 reply
    • 455 views

  16. ASHP, buffer & storage tanks

    By MattT2,
    • 7 replies
    • 1.6k views

  17. Air source heat pump pressurized hot water installation

    By Cyberfruits,
    • 0 replies
    • 440 views

  18. Vaillant ecoTec Plus 630 boiler not reaching target temp

    By windsor-tg,
    • 21 replies
    • 13.9k views

  19. Recommend a system boiler & control

    By dreadpirate57,
    • 4 replies
    • 964 views

  20. Viesmann vit 100

    By dave1967,
    • 18 replies
    • 1.2k views

  21. Can’t change flow temperature on glowworm energy c30

    By johnhenstock83,
    • 3 replies
    • 4.9k views

  22. Flickering pressure gauge

    By Rob W,
    • 4 replies
    • 1.4k views

  23. Heat pumps and showers

    By Nic,
    • 10 replies
    • 1.8k views

  24. Heat Pump water cylinders?

    By Crofter,
    • 8 replies
    • 792 views

  25. Leaking Condensate Pipe

    By steveoelliott,
    • 1 reply
    • 724 views
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